Hello, I’m a bit perplexed about which oil it is, and how it got there. Suppose it’s transmission oil, because it’s very clear and the place where I discovered it is at least the upper part of the transmission. But I’m not sure. The driving point is a Chevrolet Aveo from 2012 / petrol engine with 89000 KM and 86 HP. I think the engine is the same as the one from Opel Corsa D. At that point I had also discovered oil when buying a year ago. a free workshop stopped and asked what, and how that got there. “It seems to be a lot of gear oil,” was the info I got. So I cleaned the whole area at home and then watched. Everything remained dry until I had to see the same after a year. Do you have an idea ?